// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_RENDERER_PEPPER_PEPPER_FILE_CHOOSER_HOST_H_
#define CONTENT_RENDERER_PEPPER_PEPPER_FILE_CHOOSER_HOST_H_

#include <stdint.h>

#include <string>
#include <vector>

#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "content/common/content_export.h"
#include "ppapi/host/host_message_context.h"
#include "ppapi/host/resource_host.h"
#include "ppapi/proxy/resource_message_params.h"

namespace content {

class RendererPpapiHost;

class CONTENT_EXPORT PepperFileChooserHost
    : public ppapi::host::ResourceHost,
      public base::SupportsWeakPtr<PepperFileChooserHost> {
public:
    // Structure to store the information about chosen files.
    struct ChosenFileInfo {
        ChosenFileInfo(const std::string& path, const std::string& display_name);
        std::string path;
        std::string display_name; // May be empty.
    };

    PepperFileChooserHost(RendererPpapiHost* host,
        PP_Instance instance,
        PP_Resource resource);
    ~PepperFileChooserHost() override;

    int32_t OnResourceMessageReceived(
        const IPC::Message& msg,
        ppapi::host::HostMessageContext* context) override;

    void StoreChosenFiles(const std::vector<ChosenFileInfo>& files);

private:
    class CompletionHandler;

    int32_t OnShow(ppapi::host::HostMessageContext* context,
        bool save_as,
        bool open_multiple,
        const std::string& suggested_file_name,
        const std::vector<std::string>& accept_mime_types);

    void DidCreateResourceHosts(const std::vector<base::FilePath>& file_paths,
        const std::vector<std::string>& display_names,
        const std::vector<int>& browser_ids);

    // Non-owning pointer.
    RendererPpapiHost* renderer_ppapi_host_;

    ppapi::host::ReplyMessageContext reply_context_;
    CompletionHandler* handler_;

    base::WeakPtrFactory<PepperFileChooserHost> weak_factory_;

    DISALLOW_COPY_AND_ASSIGN(PepperFileChooserHost);
};

} // namespace content

#endif // CONTENT_RENDERER_PEPPER_PEPPER_FILE_CHOOSER_HOST_H_
